Improvement in the construction of evaporating apparatus



T- J. PRICE.

lvalporatingr Pan.

No. 28,304. A Patented May 15. 1860.

gg www Ny PEIERS. Phowmnogmpmr. wamngtun. D, C.

*Y wg UNITED STATES PATENT OFFICE.

THOMAS J. PRICE, OF INDUSTRY, ILLINOIS.

IMPROVEMENT IN THE CONSTRUCTION OF EVAPORATING APPARATUS.

To a/ZZ whom it may concern:

Be it known that I, THOMAS J. PRICE, of Industry, in the county 0fMcDonough, in the State of Illinois, have invented a new and usefulImprovement in Evaporating-Pans for Evaporating Saccharine or other Juices; and I do hereby declare'that the following is a full, clear, andexact description of the construction and operation of the same,reference being had to the annexed drawings, making a part of thisspecification, in which- Figurel is a longitudinal elevation. 1 Fig. 2is a top view with the levers detached. Fig. 3 is a cross-sectionshowing the arrangement of the dampers D D D D and levers t' i t' i.

Similar letters refer to like parts in each figure.

My invention consists in constructing evaporating-pans so that a seriesof dampers may be inserted between the cross-partition. Th ose dam perscan be lowered to obstruct the heat, as is fully shown in Figs. l and 3by dotted lines, so that the sirup may be boiled to the proper degreefor a sirup or grauulation without any possible chance of scorching orburning.

To enable others skilled in the art to make and use my invention, I willproceed to describe its construction and operation.

A A is the furnace, suitably constructed for the pau F, and to carry offthe smoke, which escapes at X.

C C C is a series of sections or pans, so constructed and fittedtogether as to forni one pan, and also forming cross-partitions B B B,

for the purpose of causing the saccharine juice to travel back and forththrough the pan, making one continuous stream until it reaches theoutlet at S. {See Fig. 2.) Between the cross-partitions B B B B, at theback endof the pau F, there is a narrow strip of metal, t, placedbetween the crosspartitions B B B B at the top, and riveted fast, (seeFig. 3,) leaving sufficient space between said cross-parti tions toinsert the dampers D D D D. As is fully shown in Fig. 1, the dampers D DD D are pivoted to the levers z' il z i at their centers. The levers t'z' t' i are pivoted tothe upright O. (See Fig. 3.)

The operation is as fellows: A suitable fire is made in the furnace A A.The saccharine juice is let into the pan at J, Fig. 2, and the streamfollows in the direction of the arrows around the cross-partitions B B BB, making one continuous stream to the outlet S, being reduced byevaporation to the proper degree for sirup or grauulation. If the Sirupin any of the back sections or pans shows any signs of scorching, thedamper D, just iu front of said section or pan, is pressed down with thelever fi, which obstruets 4the heat, and causes the current of heat t0travel lower, as is shown in Fig. l by red arrows, which immediatelystops said scorching. In evaporating apparatuses -heretofore constructedthe dempers (if any are placed in the furnace) obstruct theheatcontinually, and are liable to warp and do but little goed, if any.In my improvelnent the dampers are inserted between the cross-partitionsB B B B, so that they do not obstruct the heat only when it isnecessary, as shown in Fig. l.

Having thus described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

Oonstructing evaporatingvpans with a series of danipers, D D D D,inserted between the cross-partitions B B B B, and operated with aseries of levers, z' i. i, substantially as shown, for the purposespecified.

THOMAS J. PRICE.

Vitiiesses:

JOHN REED, XV. B. VANCE.

